.NET/Java PDF, Tiff, Barcode SDK Library

If you want to try out some more-complex code examples with Hpricot, refer to 14, where you use Hpricot to process Web page content. As well as having generic and Windows builds of each version of the Hpricot gem, Hpricot is also available in a special developers version that s kept up to date with the latest changes made by the developer. Although it s still common practice to release libraries in fixed versions from time to time, the advent of test-driven development has made it practical and reasonably safe to use more up-to-date versions of libraries that the developer is actively working on. Therefore, you can choose to install the finished, fixed versions of the Hpricot gem from the default gem servers, or you can choose to install the up to the minute source version from the developer s own gem server. Hpricot s developers build is not stored on the default gem servers, but on a gem server maintained by the Hpricot developer himself. To access it, you only need to adjust the gem install command slightly:

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4 explained that at the beginning of your presentation, you are faced with the formidable challenges not only of setting up the framework that will help the working memory of your audience understand what is to come but also of making an emotional connection. Mark Lanier, the plaintiff s attorney who presented the opening statement using BBP as described in 1, accomplished both goals by the way he structured his ideas in Act I of his story template, as shown in Figure 9-1, which established the story thread and pattern that would help the jurors sew up understanding of the case.

This command instructs gem to not look at the default gem servers but to use code.whytheluckystiff.net specifically. Many projects have their own developer gem servers, so if you want to install experimental, cutting-edge versions of gems and libraries, refer to the project s Web site for information on installing the edge/source/experimental versions (all the prior terms can be used to describe the cutting-edge versions). Running the prior command gives you a lot more options than installing from the default gem servers.

calling functions that rebind global variables). Therefore, using eval with an untrusted piece of code is no safer than using exec. There is, at present, no safe way of executing untrusted code in Python. One alternative is to use an implementation of Python such as Jython (see 17) and use the some native mechanism such as the Java sandbox.

Select which gem to install for your platform (i686-darwin8.8.1): 1. hpricot 0.4.52 (ruby) 2. hpricot 0.4.52 (mswin32) 3. hpricot 0.4.47 (ruby) 4. hpricot 0.4.43 (mswin32) 5. hpricot 0.4.43 (ruby) 6. hpricot 0.4 (mswin32) 7. hpricot 0.4 (ruby) 8. hpricot 0.3.32 (mswin32) 9. hpricot 0.3.32 (ruby) 10. hpricot 0.3.0 (mswin32) 11. hpricot 0.3 (ruby) 12. hpricot 0.2 (ruby) 13. hpricot 0.1 (ruby) 14. Cancel installation >

Although the speci c words in Act I are brief, they re a good example of how a sequence of concise statements works dynamically to create the underpinnings for a compelling visual story in PowerPoint. When you work on your own Act I statements, keep in mind the absolute importance of getting Act I right. If you know your audience well and you write the correct words, you ll hit your target, as the attorney did in this example; if you put too little effort into Act I and get the words wrong, you ll miss the mark.

As gem version numbers are incremental, running in significance from left to right, the best build available here is 0.4.52, options 1 and 2 for the generic and Windows builds respectively.

Note Ruby on Rails also makes an edge build available, as opposed to the fixed versions. Many developers choose to use the edge versions, as they offer significantly more features than the latest official release. However, rather than use version numbers like Hpricot, the Rails team uses a single revision number such as 5098 or 5200, where the higher the number, the more up-to-date the build. This is covered in more detail in 13.

Notice that the Act II category headings have been changed in this example from Key Point to Case Theme and from Detail to Evidence other examples in this chapter are also tailored to the presentation content, as described in the section Tip 3: Tailor Your Act II Column Headings to Your Profession in 5.

One of the main features of RubyGems is that gems can be updated easily. You can update all of your currently installed gems with a single line: